We prepared corn peptide (CP), a vegetable oligopeptide and tried to discover the effects of its ingestion on facilitating alcohol metabolism in healthy adult men. Ten healthy male volunteers ingested 5 g of CP, wheat peptide (WP), pea peptide (PP), alanine, or leucine 30 min before alcohol intake at a dose of 0.5 g/kg, and blood ethanol and plasma amino acid concentrations were measured during...